Stove



J. GROBLING.

STOVE.

APPHCATION FILED MAR. 3|

Patented Dec. 23,1919.

2 SHEETS-SHEET 1 II" III" Illllllll I. GROBLINGL STOVE.

APPLLCATION man MAR. 31; 1919.

1,326,051. Patented Dec. 23,1919.

2 SHEETSSHEET Z.

arrarn JOHN GROBLING, OF DETROIT, MICHIGAN.

STOVE.

Detroit, in the county of .VVayne and State of Michigan, have inventednew and useful Improvements in Stoves, of which the following is aspecification. Thlsinvention relates .I furnaces and other heaters, andhas for its ob'ect to orovide such heatin device with a V mechanicallyoperated under feed.

, i A further object ofthe invention is to provide, in adevice of thischaracter, means whereby fuel may be fed to the bottom'of thefurnacewithout necessitating the opening of doors and to provide meanswhereby a determined quantity of air is admitted to increase combustion,the air admitting means being in the nature of a revoluble gratecomprising a plurality of members, each of which being susceptible tomovement independent of the remainder, whereby air may be admitted tothe fire box in determined quantities and at determined points and alsowhereby ashes and cinders may be I readily removed.

It is a still further object of the invention to produce a heatingdevice of this character in which fuel may be fed thereto from be neaththe grate by suitable mechanism arranged in close proximity to theheater, but

' operated at remote points therefrom so that little attention will berequired by the owner or operator of the device.

Other objects and advantages will present themselves as the nature ofthe invention is better understood, reference being had to theaccompanying drawings, in which:

Figure 1 is an elevation .of the improve ment.

Fig. 2 is a substantially vertical central longitudinal sectional viewtherethrough.

Fig. 3 is a horizontal sectional view approximately on the line 3-3. ofFig. 1.

Fig. 4 is a similar sectional view approximately on the line 1-4:of'Fig. 1.

The body of the furnace is indicated by the numeral 10, the same beingsurrounded by the usual air jacket 11. The furnace may be of any desiredconstruction, but no coal inlet door is necessitated, and'likewise draftdoors may bealso eliminated, if desired. However, there is preferably anair inlet opening betweenthe jacket/11 and the furnace 10 below thegrate of the furnace.

The grate is constructed in a novel mam Specification of Letters Patent.

to improvements in Patented Dec. 23, 1919.

Application filed March 81, 1919. Serial No. 286,259.

ner and is one ofthe essential features of the invention. The gratecomprises a 1 lower member 12 which provides a support for the grateproper, the said member 12 being secured in the furnace 10 in anydesired or preferred manner and being provided with a plurality ofradially disposed slots or openings'13 and with a central round openingH. Through the round opening 14: passes the vertical branch15 of ahorizontally'dis posed pipe 16 comprising the fuel inlet and which willhereinafter be referred to in detail. The grate proper comprises an.inner diskmeinber l7 and an outer flat ring member 18. Both of themembers are provided with radially disposed slots or openings 19 and 20respectively, and both of the members are arranged for rotary "movementaround each other, the disk 17 havmg a central opening receiving thebranch 15 of the fuel inlet pipe 16. Connected to each of the members 17and 18 depending through the openings 13 of elongated radially disposedslots in the supporting member 12 are the angle ends of shaker bars 21and 22 respectively. These shaker bars extend through horizontallydisposed elongated slots 21 in the jacket 11, the lowerportion of thefurnace 10 being preferably cut away at this point to provide a passagefor the pipe 16 which also projects through the jacket 11.

The pipe or hollow member 16 has on its outer end a vertically disposedhopper 25,

. the walls of which being preferably inclined from the mouth to thesaid end thereof and this hopper is achpted to receive the fuel which isto be fed to the furnace. The pipe or hollow member 16 extends asuitable dis tance beyond the outer face of the hopper 25, and in thisendis received a plunger 26 having a pitman 27 pivotally connectedthereto, the said pitman having its outer end secured to a crank shaft28 provided upon the shaft 29 of a gear 30. This gear is operated by aworm 31. The worm is secured on a shaft 32 operated by a motor 33. Whenthe motor is in operation the shaft 32 is turned, and consequently theplunger 26 reciprocated to force. a quantity of coal delivered from thehopper through the hollow member or pipe 26 into the fire box of thefurnace. When the grate sections 17 and 18 are turned to regulate theopenings between the said sections and between the supporting member 12,the air being let into the furnace from the bottom thereof will. propery m X port, and means for with the ignited gases from the fuel whichalso enters the furnace from the bottom thereof, to insure perfectcombustion, and the openings in the grate sections 18 and 19 and in thesupporting member 12 thereof are only brought into full alinement whenall of the ashes are to be removed from the furnace.

It is believed, from the foregoing description, When taken in connectionwith the drawings, the simplicity of the construction and the advantagesthereof will be readily apparent Without further detailed description.

Having thus described the invention, what is claimed as new, is 1-- 1.In a furnace, a grate supporting member secured in said furnace andhaving radial openings therefor, a grate comprising an inner slotteddisk member and an outer slotted ring member surrounding the disk, andboth disk and ring resting on the sup independently revolving either thedisk or ring 011 the support.

2. In a furnace, a grate supporting member secured therein and havingspaced openings therethrough, a grate comprising an inner slotted diskmember and an outer slotted fiat ring member surrounding the disk, ashaker bar for the disk and a shaker bar for the ring, whereby eitherthe disk or the ring may be turned independently on the support.

3. In a furnace, a slotted grate supporting member secured therein, andsaid member having a central opening therethrough, a grate comprising aninner slotted disk mem ber and an outer slotted flat ring memberarranged around the disk and both the disk and ring resting on thesupport, said disk having a central opening therethrough, a fuel feedpipe entering from the bottom of the furnace and having a branchpassingthrough the openings in the support and in the disk, means forindependently revolving the disk and ring on the support, a hopper forthe feed pipe, and a reciprocatory element in the outer end of said feedpipe adjacent to said hopper.

In testimony whereof I affix my signature.

JOHN GROBLING.

